Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
  • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
  • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
  • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
  • C07D213/72—Nitrogen atoms
  • C07D213/76—Nitrogen atoms to which a second hetero atom is attached
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P25/00—Drugs for disorders of the nervous system
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P3/00—Drugs for disorders of the metabolism
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P3/00—Drugs for disorders of the metabolism
  • A61P3/04—Anorexiants; Antiobesity agents
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P3/00—Drugs for disorders of the metabolism
  • A61P3/06—Antihyperlipidemics
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P3/00—Drugs for disorders of the metabolism
  • A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
  • A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P9/00—Drugs for disorders of the cardiovascular system
  • A61P9/12—Antihypertensives
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
  • C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
  • C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links

Definitions

• the present invention is concerned with novel pyrimidine derivatives useful as llb- HSDl inhibitors (T2D).
• the invention is concerned particularly with compounds of formula I
• R 1 is hydrogen, alkyl, cycloalkyl, hydroxy, hydroxyalkyl, alkoxy, alkoxyalkyl, amino or aminoalkyl;
• R 2 is hydrogen, alkyl or halogen
• R 3 is hydrogen, alkyl or halogen
• R 4 is phenyl, naphtyl, thiophenyl, pyridyl, quinolyl, piperidyl, morpholyl or thiomorpholyl optionally substituted with one or more substituents independently selected from alkyl, cycloalkyl, halogen, hydroxy, hydroxyalkyl, alkoxy, alkoxyalkyl, hydroxyalkoxy, alkoxyalkoxy, cyano, trifluoromethyl, trifluoromethoxy, aryl, arylalkyl, aryloxy, heterocyclyl, alkylcarbonylamino, alkoxycarbonylalkoxy and alkyl-SO 2 - ;
• R 5 is hydrogen or alkyl;
• A is nitrogen or C-R 10 ;
• E is nitrogen or C-R 9 ;
• G is nitrogen or C-R 8 ;
• Glucocorticoids (Cortisol in humans, corticosterone in mice and rats) are an important class of adrenocorticosteroids that regulate many metabolic and homeostatic processes and form a key component of the response to stress. Glucocorticoids act via intracellular glucocorticoid receptors and, in some tissues, mineralocorticoid receptors; both being nuclear transcription factors. Glucocorticoid action on target tissues depends not only on circulating steroid concentrations and the cellular expression of receptors, but also on intracellular enzymes that critically determine to which extent glucocorticoids gain access to receptors in an active forms.
• 1 lbeta-hydroxysteroid dehydrogenases catalyze the interconversion of the principal active 11 -hydroxy-glucocorticoid (Cortisol in men) and their inactive 11-keto metabolites (cortisone in men).
• the enzyme 1 lbeta-hydroxysteroid dehydrogenase type 1 (llbeta-HSDl) inter- converts inactive into active glucocorticoids, thereby playing a major role in local modulation of cellular agonist concentration and thus activation of corticosteroid receptors in target tissues.
• llbeta-HSDl The enzyme 1 lbeta-hydroxysteroid dehydrogenase type 1 (llbeta-HSDl) inter- converts inactive into active glucocorticoids, thereby playing a major role in local modulation of cellular agonist concentration and thus activation of corticosteroid receptors in target tissues.
• Ih a recent study made by F. Hoffmann-La Roche differences in gene expression in lean and obese men were analyzed using gene array technology in order to identify specific changes in gene expression that might be associated with insulin resistance or altered metabolism. This study revealed that the mRNA for 1 lbeta-HSDl is approximately two-fold up regulated in adipos
• the first pharmacological indication tnat llbeta-HSDi innibmon in men might have beneficial effects were obtained by using carbenoxolone, an anti-ulcer drug which inhibits both 1 lbeta-HSDl and the related enzyme 1 lbeta-HSD2.
• carbenoxolone an anti-ulcer drug which inhibits both 1 lbeta-HSDl and the related enzyme 1 lbeta-HSD2.
• Treatment with carbenoxolone led to an increase in insulin sensitivity indicating that that inhibition of 1 lbeta-HSDl may reduce cellular Cortisol levels and therefore minimizing some of its deleterious effects. (Walker et al. 1995; J. Clin. Endocrinol. Metab. 80, 31155-3159).
• 1 lbeta-HSDl is expressed in many tissues including liver, adipose tissue, vascular smooth muscles, pancreas and brain. Its activity is dependent on NADP(H) and it has a relatively low affinity for its substrate (compared to llbeta-HSD2). 11 beta-HSDl in tissue homogenates and when purified is bidirectional, exhibiting both 1 lbeta-dehydrogenase and llbeta-reductase reactions, with greater stability of the dehydrogenase activity (P.M. Stewart and Z.S. Krozowski, Vitam. Horm. 57 (1999), pp. 249-324).
• the 1 lbeta-reductase activity predominates, which regenerates active glucocorticoids from inert 11-keto forms.
• Such glucocorticoid regeneration will increase effective intracellular glucocorticoid levels and thereby amplifying glucocorticoid activity. It is this elevated cellular Cortisol concentration that might lead to increased hepatic glucose production, adipocyte differentiation and insulin resistance.
• Inhibition of 1 lbeta-HSDl should not only reduce the typical Syndrome-X / Diabetes associated symptoms, but it should also be save and without major side effect.
• Studies with the unspecific inhibitor carbenoxolone highlight the importance of developing specific 1 lbeta-HSDl inhibitors.
• the inhibition of the llbeta-HSD2 enzyme is badly tolerated and results in increased blood pressure.
• inhibition of 1 lbeta- HSDl should be well tolerated since 1 lbeta-HSDl knockout mice were found be healthy and to resist hyperglycemia provoked by obesity or stress (Kotelevtsev Y. et al., Proc Natl Acad Sci U S A. 1997 Dec 23;94(26):14924-9).
• mice Similar upon starvation these mice had attenuated activation of key hepatic enzymes that are involved in gluconeogenesis. In addition, these mice had improved lipid and lipoprotein profiles suggesting that inhibition of HSDl might be highly efficacious and safe.
• 1 lbeta-HSDl inhibitors might also be beneficial to reduce high blood pressure (Masuzaki H. et al., J Clin Invest. 2003 July;112(l):83-90; Rauz S. et al., QJM. 2003 July;96(7):481-90) to improve cognition (Sandeep TC. et al., Proc Natl Acad Sci U S A. 2004 Apr. 27;101(17):6734-9) or to improve Alzheimer associated deficits. Taken together llbeta-HSDl inhibition might be a save and efficacious approach to treat symptoms of diabetes, obesity and other diseases.
• the compounds of formula I and their pharmaceutically acceptable salts and esters are novel and have valuable pharmacological properties.
• they are 1 Ib-HSDl inhibitors (T2D) and they display selectivity against the related llbeta-HSD2 enzyme. Therefore the compounds which are specific llbeta-HSDl inhibitors (T2D) represent an approach to e.g. lower blood glucose levels and normalize lipid parameters in Type 2 diabetic patients by modulating the local concentration of the active glucocorticoid Cortisol in target tissue (liver, adipose tissue).
• the compounds of the present invention can be used in the prophylaxis and/or treatment of metabolic disorders, obesity, dyslipidemiae, hypertension and/or diabetes, particularly diabetes Type II.
• the compounds of this invention can further be used in the prophylaxis and/or treatment of high ocular eye pressure, cognition, Alzheimer and/or neurodegeneration.
• Objects of the present invention are the compounds of formula I and their aforementioned salts and esters per se and their use as therapeutically active substances, a process for the manufacture of the said compounds, intermediates, pharmaceutical compositions, medicaments containing the said compounds, their pharmaceutically acceptable salts and esters, the use of the said compounds, esters and salts for the prophylaxis and/or therapy of illnesses, especially in the treatment or prophylaxis of eating disorders, obesity, dyslipidemiae, hypertension and/or diabetes, particularly diabetes Type II, and the use of the said compounds, salts and esters for the production of medicaments for the treatment or prophylaxis of metabolic disorders, obesity, dyslipidemiae, hypertension and/or diabetes, particularly diabetes Type II.
• the compounds of the present invention can further be combined with PPAR (alpha, gamma, delta) agonists, DHEA (dehydroepiandrosterone), DPPIV inhibitors, insulin and/or lipase inhibitors, particularly orlistat.
• PPAR alpha, gamma, delta
• DHEA dehydroepiandrosterone
• DPPIV inhibitors insulin and/or lipase inhibitors, particularly orlistat.
• alkyl signifies a straight-chain or branched-chain alkyl group with 1 to 8 carbon atoms, preferably a straight or branched-chain alkyl group with 1 to 6 carbon atoms and particularly preferred a straight or branched-chain alkyl group with 1 to 4 carbon atoms
• straight- chain and branched C 1 -C 8 alkyl groups are methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert.
• cycloalkyl signifies a cycloalkyl ring with 3 to 8 carbon atoms and preferably a cycloalkyl ring with 3 to 6 carbon atoms.
• Examples of C 3 -C 8 cycloalkyl are cyclopropyl, methyl-cyclopropyl, dimethylcydopropyl, cyclobutyl, methyl- cyclobutyl, cydopentyl, methyl-cyclopentyl, cyclohexyl, methyl- cydohexyl, dimethyl- cyclohexyl, cycloheptyl and cyclooctyl, preferably cyclopropyl.
• alkoxy alone or in combination, signifies a group of the formula alkyl-
• alkyl has the previously given significance, such as methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy, sec. butoxy and tert.butoxy, preferably methoxy and ethoxy and most preferred methoxy.
• hydroxyalkyl signifies an alkyl group as defined before, wherein one or more hydrogen atoms, preferably one hydrogen atom is replaced by a hydroxy group.
• hydroxyalkyl are hydroxymethyl and hydroxyethyl.
• aryl signifies a phenyl or naphthyl group, preferably a phenyl group which optionally carries one or more substituents, preferably one to three, each independently selected from halogen, trifluorornethyl, trifluoromethoxy, amino, alkyl, alkoxy, alkylcarbonyl, cyano, carbamoyl, alkoxycarbamoyl, methylendioxy, carboxy, alkoxycarbonyl, aminocarbonyl, alkyaminocarbonyl, dialkylaminocarbonyl, hydroxy, nitro, alkyl-SO 2 -, amino-SO 2 -, cycloalkyl and the like.
• phenyl or naphthyl particularly phenyl optionally substituted with one to three, preferably one or two substituents independently selected from alkyl, halogen, alkoxy, trifluoromethoxy, nitro and trifluoromethyl. Particularly preferred is phenyl.
• aryloxy alone or in combination, signifies a aryl-O- group in which the term “aryl” has the previously given significance.
• heterocyclyl alone or in combination signifies a saturated, partially unsaturated or aromatic 5- to 10-membered heterocycle which contains one or more hetero atoms selected from nitrogen, oxygen and sulphur. If desired, it can be substituted on one or more carbon atoms e.g. by halogen, alkyl, alkoxy, oxo etc. and/or on a secondary nitrogen atom (i.e.
• alkyl, cycloalkyl, aralkoxycarbonyl, alkanoyl, phenyl or phenylalkyl or on a tertiary nitrogen atom (i.e. N-) by oxido, with halogen, alkyl, cycloalkyl and alkoxy being preferred.
• heterocyclyl groups are pyrrolidinyl, piperidinyl, piperazinyl, morpholinyl, thiomorpholinyl, pyrazoyl, imidazoyl (e.g.
• Preferred examples are thiophenyl, quinolyl, piperidyl, morpholyl, thiomorpholyl, oxazolyl, pyridinyl, pyrimidinyl, pyrazolyl, imidazolyl and thiazolyl.
• amino signifies a primary, secondary or tertiary amino group bonded via the nitrogen atom, with the secondary amino group carrying an alkyl or cycloalkyl substituent and the tertiary amino group carrying two similar or different alkyl or cycloalkyl substituents or the two nitrogen substitutents together forming a ring, such as, for example, -NH 2 , methylamino, ethylamino, dimethylamino, diethylamino, methyl-ethylamino, pyrrolidin-1-yl or piperidino etc., preferably primary amino, dimethylamino and diethylamino and particularly dimethylamino.
• halogen alone or in combination, signifies fluorine, chlorine, bromine or iodine and preferably fluorine, chlorine or bromine.
• carbonyl alone or in combination, signifies the -C(O)- group.
• nitro alone or in combination signifies the -NO 2 group.
• salts refers to those salts which retain the biological effectiveness and properties of the free bases or free acids, which are not biologically or otherwise undesirable.
• the salts are formed with inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid and the like, preferably hydrochloric acid, and organic acids such as acetic acid, propionic acid, glycolic acid, pyruvic acid, oxylic acid, maleic acid, malonic acid, succinic acid, fumaric acid, tartaric acid, citric acid, benzoic acid, cinnamic acid, mandelic acid, methanesulfonic acid, ethanesulfonic acid, p-toluenesulfonic acid, salicylic acid, N-acetylcystein and the like.
• salts derived from an inorganic base include, but are not limited to, the sodium, potassium, lithium, ammonium, calcium, magnesium salts and the like.
• Salts derived from organic bases include, but are not limited to salts of primary, secondary, and tertiary amines, substituted amines including naturally occurring substituted amines, cyclic amines and basic ion exchange resins, such as isopropylamine, trimethylamine, diethylamine, triethylamine, tripropylamine, ethanolamine, lysine, arginine, N-ethylpiperidine, piperidine, polymine resins and the like.
• the compound of formula I can also be present in the form of zwitterions. Particularly preferred pharmaceutically acceptable salts of compounds of formula I are the hydrochloride salts.
• the compounds of formula I can also be solvated, e.g. hydrated.
• the solvation can be effected in the course of the manufacturing process or can take place e.g. as a consequence of hygroscopic properties of an initially anhydrous compound of formula I (hydration).
• pharmaceutically acceptable salts also includes physiologically acceptable solvates.
• “Pharmaceutically acceptable esters” means that compounds of general formula (I) maybe derivatised at functional groups to provide derivatives which are capable of conversion back to the parent compounds in vivo. Examples of such compounds include physiologically acceptable and metabolically labile ester derivatives, such as methoxymethyl esters, methylthiomethyl esters and pivaloyloxymethyl esters. Additionally, any physiologically acceptable equivalents of the compounds of general formula (I), similar to the metabolically labile esters, which are capable of producing the parent compounds of general formula (I) in vivo, are within the scope of this invention.
• the compounds of formula I can contain several asymmetric centers and can be present in the form of optically pure enantiomers, mixtures of enantiomers such as, for example, racemates, optically pure diastereioisomers, mixtures of diastereoisomers, diastereoisomeric racemates or mixtures of diastereoisomeric racemates.
• Another preferred object of the present invention are the compounds of formula I, wherein R 2 is hydrogen. Further preferred are those compounds according to formula I, wherein R 2 is alkyl. Particularly preferred are those compounds of formula I, wherein R 2 is methyl.
• Another preferred aspect of the present invention are compounds of formula I, wherein R 5 is hydrogen.
• Another preferred aspect of the present invention are the compounds of formula I, wherein G is C-R 8 . Also preferred are those compounds of formula I, wherein G is nitrogen.
• R 4 is phenyl, naphtyl, thiophenyl, pyridyl, quinolyl, piperidyl, morpholyl or thiomorpholyl optionally substituted with one to three, preferably one or two substituents independently selected from alkyl, cycloalkyl, halogen, hydroxy, hydroxyalkyl, alkoxy, alkoxyalkyl, hydroxyalkoxy, alkoxyalkoxy, cyano, trifluoromethyl, trifluoromethoxy, aryl, arylalkyl, aryloxy, heterocyclyl, alkylcarbonylamino, alkoxycarbonylalkoxy and alkyl-SO 2 - .
• R is phenyl optionally substituted with one to three substituents independently selected from alkyl, cycloalkyl, halogen, hydroxy, hydroxyalkyl, alkoxy, alkoxyalkyl, hydroxyalkoxy, alkoxyalkoxy, cyano, trifluoromethyl, trifluoromethoxy, aryl, arylalkyl, aryloxy, heterocyclyl, alkylcarbonylamino, alkoxycarbonylalkoxy and alkyl-SO 2 -.
• R 4 is phenyl substituted with one to three substituents independently selected from alkyl, halogen and trifluoromethyl.
• R 6 , R 7 , R 8 , R 9 and R 10 are independently selected from hydrogen, alkyl, halogen and trifluoromethyl.
• Compounds of general formula I can be obtained according to scheme 1 from compounds of formula II comprising R 1 to R 7 substituents and A, E, G definitions according to the above description via a condensation reaction with aryl, heteroaryl or heterocydyl sulfonyl chlorides, in the presence of a base such as trietylamine or (4- dimetylamino) -pyridine (DMAP) in a solvent such THF, ethanol, methylene chloride DMF or DMSO, or in pyridine as a solvent, with or without the addition of a base such as trietylamine or DMAP, at room temperature or at elevated temperatures, to give compounds of general formula I.
• Compounds of formula I where R 5 equals alkyl can also be prepared from compounds of formula I where R5 equals H via an alkylation reaction, using, for example, NaH as a base and DMF as solvent, at room temperature or at elevated temperatures.
• compound of general formula I can be prepared according to scheme 2 from compounds of general formula III in a substitution reaction with an corresponding aryl heteroaryl or heterocyclyl sulphonamide, in the presence of a base such as sodium hydride, Na 2 CO 3 or triethyl amine and in a solvent such as THF, DMF or DMSO at room temperature or at elevated temperatures.
• the reaction can also be carried out under the condition of an Ullman-type reaction with, for example Cu(I) chloride, or Cu(I) iodide in a solvent such as dioxane or DMF, in analogy to a method described by S. L. Buchwald (J. Am. Chem. Soc, 2001, 7727).
• a further alternative consists of reacting compounds of general formula IV via a metal- catalysed (Pd or Ni) cross-coupling reaction with corresponding organometallic reagent such as (hetero)arylboron, (hetero)arylzink or (hetero)aryltin reagents using Suzuki-, Stille- or Negishi-type coupling reactions (for literature: Suzuki, Chem. Rev., 1995, 95, 2475; Stifle, Angew. Chem. IEE, 1986, 25, 508; Negishi, Ace. Chem. Res., 1982, 15, 340).
• organometallic reagent such as (hetero)arylboron, (hetero)arylzink or (hetero)aryltin reagents using Suzuki-, Stille- or Negishi-type coupling reactions
• reaction with alkyl amines or ammonia either applied in access, without solvent, or in equimolar amounts, in a suited solvent such as ethanol, water, DMF or THF, gives rise to compounds of formula VII.
• a suited solvent such as ethanol, water, DMF or THF.
• the reaction can also be performed in an autoclave at elevated pressure in analogy to published procedures (for an example: T. Haga, Heterocyles, 22, pi 17).
• Compounds of formula II can then be be prepared from VII via a metal- catalysed (Pd or Ni) cross-coupling reaction with corresponding organometallic reagent such as (hetero)arylboron, (hetero)arylzink or (hetero)aryltin reagents using Suzuki-, Stille- or Negishi-type coupling reactions as descibed above.
• organometallic reagent such as (hetero)arylboron, (hetero)arylzink or (hetero)aryltin reagents using Suzuki-, Stille- or Negishi-type coupling reactions as descibed above.
• the amino group can optionally be protected with standard protecting groups such as BOC or pivaloyl prior to performing the cross-coupling reaction.
• Compounds of formula III are obtained from compounds of formula VIII (prepared from V via metal-catalysed cross-coupling as for II) by an halogenation reaction (as for the preparation of VI).
• Compounds of formula IV can be prepared from VI via a nudeophilic substitution reaction with a corresponding aryl, heteroayryl or heterocycylyl sulfonamide in a solvent such as DMSO or DMF in the presence of a base such as sodium hydride, at room temperature or at elevated temperature.
• a base such as sodium hydride
• the sulfonamides used in this step are either commercial, known in the literature or can be obtained by standard procedures known in the art. They can also first be converted into their sodium or potassium and these salts can then be used in the reaction, a procedure which does not require the addition of further base.
• IV can be obtained from VII by reacting with the corresponding aryl, heteroaryl or heterocyclyl sulfonyl chlorides as described above.
• a preferred process for the preparation of a compound of formula I, wherein R 1 to R 7 , A, E and G are defined as before comprises the reaction of a compound according to formula
• R 1 to R 7 , A, E and G are defined as before.
• a base such as trietylamine or (4- dimetylamino) -pyridine (DMAP)
• a solvent such THF, ethanol, methylene chloride DMF or DMSO, or in pyridine as a solvent, with or without the addition of a base such as trietylamine or DMAP, at room temperature or at elevated temperatures.
• an object of the present invention are compounds as decribed above for the preparation of medicaments for the prophylaxis and therapy of illnesses which are caused by disorders associated with the enzyme 1 lbeta-hydroxysteroid dehydrogenasel (HbHSDl).
• compositions comprising a compound of the formula I as described above and a therapeutically inert carrier.
• a further preferred embodiment of the present invention is the use of a compound of the formula I as described above for the preparation of medicaments for the treatment and prophylaxis of diabetes, obesity, eating disorders, dyslipidemiae and hypertension.
• a further object of the present invention comprises a compound according to formula I as described above, when manufactured according to any one of the described processes.
• an object of the invention is a method for the treatment and prophylaxis of diabetes, obesity, eating disorders, dyslipidemiae and hypertension, which method comprises administering an effective amount of a compound of formula I as described above.
• Particularly preferred is a method for the treatment and prophylaxis of diabetes Type II, which method comprises administering an effective amount of a compound according to formula I as described above.
• the resulting pellet was resuspended in storage buffer (2OmM Tris pH 7.5; 1 mM EDTA; 10% Glycerol) and the centrifugation was repeated. The resulting pellet containing the microsomal fraction was again taken up into storage buffer and aliquots were kept frozen in liquid Nitrogen until use.
• Microsomes isolated from HEK293 cells transiently expressing human llbeta-HSDl were incubated in assay buffer (100 mM NaCl; ImM EDTA; ImM EGTA; ImM MgCl; 250 mM Sucrose; 20 mM Tris pH 7.4; Cortisone 50-20OnM and NADPH ImM) together with different concentrations of test substances. After 60 min. of incubation at 37 0 C the assay was stopped by heating to 80 0 C (5 min.) and by addition of the inhibitor Carbenoxolone (1 uM).
• the amount of Cortisol produced in this assay was determined using a commercially available, ELISA-based Cortisol-detection kit (Distributed by Assay Design, Inc.). Inhibitors were characterized by there IC50 values, e.g. the concentration at which the production of Cortisol was 50% reduced.
• preferred compounds as described above have IC50 values below 1000 nM; more preferred compounds have IC50 values below 100 nM. Most preferred compounds have IC50 values below 1OnM.
• HEK293 cells stably expressing human llbeta-HSDl were cultivated in 96 well plates in DMEM. First inhibitors and 60 min later Cortisone was added to the cells. After 60 min of incubation at 37°C in a 5% CO2 atmosphere part of the medium was removed and the conversion from Cortisone to Cortisol was measured using a commercially available ELISA kit (Distributed by Assay Design, Inc.).
• the compounds of formula I and their pharmaceutically acceptable salts and esters can be used as medicaments (e.g. in the form of pharmaceutical preparations).
• the pharmaceutical preparations can be administered internally, such as orally (e.g. in the form of tablets, coated tablets, dragees, hard and soft gelatin capsules, solutions, emulsions or suspensions), nasally (e.g. in the form of nasal sprays) or rectally (e.g. in the form of suppositories).
• the administration can also be effected parentally, such as intramuscularly or intravenously (e.g. in the form of injection solutions).
• the compounds of formula I and their pharmaceutically acceptable salts and esters can be processed with pharmaceutically inert, inorganic or organic adjuvants for the production of tablets, coated tablets, dragees and hard gelatin capsules.
• Lactose, corn starch or derivatives thereof, talc, stearic acid or its salts etc. can be used, for example, as such adjuvants for tablets, dragees and hard gelatin capsules.
• Suitable adjuvants for soft gelatin capsules are, for example, vegetable oils, waxes, fats, semi-solid substances and liquid polyols, etc.
• Suitable adjuvants for the production of solutions and syrups are, for example, water, polyols, saccharose, invert sugar, glucose, etc.
• Suitable adjuvants for injection solutions are, for example, water, alcohols, polyols, glycerol, vegetable oils, etc.
• Suitable adjuvants for suppositories are, for example, natural or hardened oils, waxes, fats, semi-solid or liquid polyols, etc.
• the pharmaceutical preparations can contain preservatives, solubilizers, viscosity-increasing substances, stabilizers, wetting agents, emulsifiers, sweeteners, colorants, flavorants, salts for varying the osmotic pressure, buffers, masking agents or antioxidants. They can also contain still other therapeutically valuable substances.
• the compounds of formula I and their pharmaceutically acceptable salts can be used for the prophylaxis and treatment of arthritis, cardiovascular diseases, diabetes, renal failure and particularly eating disorders and obesity.
• the dosage can vary in wide limits and will, of course, be fitted to the individual requirements in each particular case.
• Example 4b a) In analogy to example 1, on reaction of 5-(2-cMoro-phenyl)-6-methyl-pyridin-2- ylamine with 3-chloro-2-methyl-benzenesulfonyl chloride there was obtained: 3-Chloro- N-[5-(2-chloro-phenyl)-6-methyl-pyridin-2-yl]-2-methyl-benzenesulfonamide as a white solid.
• Example 9 In analogy to example 1, on reaction of 5- (2,4-difluoro-phenyl) -pyridin-2-ylamine with 5- fluoro-2-methyl-benzenesulfonyl chloride there was obtained: N-[5-(2,4-Difluoro- phenyl)-pyridin-2-yl]-5-fluoro-2-methyl-benzenesulfonamide as a crystalline white solid.
• Example 12 In analogy to example 1, on reaction of 5-(4-fluoro-phenyl)-pyridin-2-ylamine with 5- fluoro-2-methyl-benzenesulfonyl chloride there was obtained: 3-Chloro-N-[5-(4-fluoro- phenyl)-pyridin-2-yl]-2-methyl-benzenesulfonamide as a crystalline off-white solid.
• Example 16 In analogy to example 1, on reaction of 5-(2-chloro-phenyl)-pyridin-2-ylamine with 2,4- dichloro-6-methyl-benzenesulfonyl chloride there was obtained: 2,4-Dichloro-N-[5-(2- chloro-phenyl)-pyridin-2-yl]-6-methyl-benzenesulfonamide as a colourless crystalline solid.
• Example 31 In analogy to example 1, on reaction of 5-(4-fluoro-2-methyl-phenyl)-pyridin-2-ylamine with 3-chloro-2-methyl-benzenesulfonyl chloride there was obtained: 3-Chloro-N-[5-(4- fluoro-2-methyl-phenyl)-pyridin-2-yl]-2-methyl-benzenesulfonamide as a light-yellow solid.
• Example 35 In analogy to example 1, on reaction of 5-(2,4-dicHoro-phenyl)-pyridin-2-ylamine with 3- chloro-4-methyl-benzenesulfonyl chloride there was obtained: 3-Chloro-N-[5 ⁇ (2,4- dicMoro-phenyl) -pyridin-2-yl] -4-methyl-benzenesulfonamide as an crystalline white solid.
• Example 41 In analogy to example 1, on reaction of 5-(2,5-dichloro-phenyl)-pyridin-2-ylamine with 3-chloro-2-methyl-benzenesulfonyl chloride there was obtained: 3-Chloro-N-[5-(2,5- dichloro- ⁇ henyl)-pyridin-2-yl]-2-methyl-benzenesulfonamide as a white solid.
• Example 48 In analogy to example 1, on reaction of 5-(2,4-dichloro-phenyl)-pyridin-2-ylamine with 4- trifluoromethyl-benzenesulfonyl chloride there was obtained: N-[5-(2,4-Dichloro- phenyl) -pyridin-2-yl] -4-trifluoromethyl-benzenesulfonamide as a crystalline white solid.
• Example 57 In analogy to example 1, on reaction of 5-(4-fluoro-phenyl)-6-methyl-pyridin-2-ylamine with 4-acetylamino3-chloro-benzenesulfonyl chloride there was obtained: N- ⁇ 2-Chloro-4- [5-(4-fluoro-phenyl)-6-methyl-pyridin-2-ylsulfamoyl] -phenyl ⁇ -acetamide as a light- brown solid.
• Example 71 In analogy to example 1, on reaction of 5-(2,4-dichloro-phenyl)-pyridin-2-ylamine with 4- chloro-2,5-dimethyl-benzenesulfonyl chloride there was obtained: 4-Chloro-N-[5-(2,4- dichloro- ⁇ henyl)-pyridin-2-yl]-2,5-dimethyl-benzenesulfonamide as an amorphous white solid. ISN mass spectrum, m/e: 439 (M-I calculated for C 19 H 15 Cl 3 N 2 O 2 S: 439).
• Example 79 In analogy to example 1, on reaction of 5-(2,3-dichloro-phenyl)-py ⁇ idin-2-ylamine with 4- trifluoromethyl-benzenesulfonyl chloride there was obtained: N-[5-(2,3-Dichloro- phenyl)-pyridin-2-yl]-4-trifluoromethyl-benzenesulfonamide as a white solid.
• Example 83 In analogy to example 1, on reaction of 5-(2-chloro-phenyl)-pyridin-2-ylamine with 3- trifluromethyl-benzenesulfonyl chloride there was obtained: N-[5-(2-Chloro-phenyl)- pyridin-2-yl]-3-trifluoromethyl-benzenesulfonamide as a white solid. ISN mass spectrum, m/e: 411 (M-I calculated for Ci 8 Hi 2 ClF 3 N 2 O 3 S: 411).
• Example 87 In analogy to example 1, on reaction of 5-(2,4-dichloro- ⁇ henyl)-pyridin-2-ylamine with 4- ethyl-benzenesulfonyl chloride there was obtained: N-[5-(2,4-Dichloro-phenyl)-pyridin- 2-yl]-4-ethyl-benzenesulfonamide as a crystalline white solid.
• Example 93 In analogy to example 1, on reaction of 5-(2-cHoro-phenyl)-pyridin-2-ylamine with 4- chloro-2,5-dimethyl-benzenesulfonyl chloride there was obtained: 4-Chloro-N-[5-(2- chloro-phenyl)-pyridin-2-yl]-2,5-dimethyl-benzenesulfonamide as a white solid.
• Example 100 In analogy to example 1, on reaction of 5-(2,4-chloro-phenyl)-6-methyl-pyridin-2- ylamine with 4-chloro-2,5-dimethyl-benzenesulfonyl chloride there was obtained: 4- Chloro-N-[5-(2,4-dichloro-phenyl)-6-methyl-pyridin-2-yl]-2,5-dimethyl- benzenesulfonamide as a white powder.
• Example 103 a In analogy to example 1, on reaction of 5-(2,4-dichloro-phenyl)-pyridin-2-ylamine with 4-chloro-benzenesulfonyl chloride there was obtained: 4-Chloro-N- [5-(2,4-dichloro- phenyl)-pyridin-2-yl]-benzenesulfonamide as an off-white foam.
• Example 104 In analogy to example 1, on reaction of 5-(2-chloro-phenyl)-6-methyl-pyridin-2-ylamine with 3-fluoro-benzenesulfonyl chloride there was obtained: N-[5-(2-Chloro-phenyl)-6- methyl-pyridin-2-yl]-3-fluoro-benzenesulfonamide as an light-yellow foam.
• Example 107 In analogy to example 1, on reaction of 5-(2-chloro-phenyl)-6-methyl-pyridin-2-ylamine with 2,4-dichloro-5-methyl-benzenesulfonyl chloride there was obtained: 2,4-Dichloro-N- [5-(2-chloro-phenyl)-6-methyl-pyridin-2-yl]-5-methyl-benzenesulfonamide as a light- yellow foam.
• ISN mass spectrum, m/e: 439 (M-I calculated for Ci 9 H 15 Cl 3 N 2 O 2 S: 439).
• Example 110 In analogy to example 1, on reaction of 5-(4-fluoro-2-methyl-phenyl)-6-methyl-pyridin- 2-ylamine with 3-chloro-benzenesulfonyl chloride there was obtained: 3-Chloro-N-[5-(4- fluoro-2-methyl-phenyl)-6-methyl-pyridin-2-yl]-benzenesulfonamide as a light-yellow foam. ISN mass spectrum, m/e: 389 (M-I calculated for Ci 9 H 16 ClFN 2 O 2 S: 389).
• Example 111 Example 111
• Example 113 In analogy to example 1, on reaction of 5-(4-fluoro-2-methyl-phenyl)-6-methyl-pyridin- 2-ylamine with 3-methyl-benzenesulfonyl chloride there was obtained: N-[5-(4-Fluoro-2- methyl-phenyl)-6-methyl-pyridin-2-yl]-3-methyl-benzenesulfonamide as a light-yellow viscous oil. ISN mass spectrum, m/e: 369 (M-I calculated for C 20 H 19 FN 2 O 2 S: 369).
• Example 119 In analogy to example 1, on reaction of 5-(2-chloro-phenyl)-6-methyl-pyridin-2-ylamine with 4-fluoro-3-trifluoromethyl-benzenesulfonyl chloride there was obtained: N-[5-(2- Chloro-phenyl)-6-methyl-pyridin-2-yl]-4-fluoro-3-trifluoromethyl-benzenesulfonamide as a light-brown viscous oil. ISN mass spectrum, m/e: 442.9 (M-I calculated for Ci 9 Hi 3 ClF 4 N 2 O 2 S: 443).
• Example 120 In analogy to example 1, on reaction of 5-(2-chloro-phenyl)-6-methyl-pyridin-2-ylamine with 4-fluoro-3-trifluoromethyl-benzenesulfonyl chloride there was obtained: N-[5-(2- Chloro-phenyl)-6-methyl-pyridin-2-yl]-4-fluoro-3
• Example 122 a In analogy to example 1, on reaction of 5-(5-fluoro-2-methyl-phenyl)-pyridin-2- ylamine with 3-trifluoromethyl-benzenesulfonyl chloride there was obtained: N- [5- (5- Fluoro-2-methyl-phenyl)-pyridin-2-yl]-3-trifluoromethyl-benzenesulfonamide as a white solid.
• Example 124 a In analogy to example 1, on reaction of 5-(5-fluoro-2-methyl-phenyl)-pyridin-2- ylamine with 3-chloro-2-methyl-benzenesulfonyl chloride there was obtained: 3-Chloro- N-[5-(5-fluoro-2-methyl-phenyl)-pyridin-2-yl]-2-methyl-benzenesulfonamide as a white solid. ISN mass spectrum, m/e: 389.1 (M- 1 calculated for C 19 H 16 ClFN 2 O 2 S: 389) .
• Example 125 a In analogy to example 1, on reaction of 5-(5-chloro-2-methyl-phenyl)-pyridin-2- ylamine with 3-trifluoromethyl-benzenesulfonyl chloride there was obtained: N- [5- (5- Chloro-2-methyl-phenyl)-pyridin-2-yl] -3-trifluoromethyl-benzenesulfonamide as an off- white solid.
• Example 130 In analogy to example 1, on reaction of 5-(6-Chloro-2-fluoro-3-methyl-phenyl)-pyridin- 2-ylamine with 4-fiuoro-benzenesulfonyl chloride there was obtained: N- [5-(6-Chloro-2- fiuoro-3-methyl-phenyl)-pyridin-2-yl]-4-fiuoro-benzenesulfonamide as a light-yellow solid.
• Example 132 a In analogy to example 1, on reaction of 5-(5-Chloro-2-methyl-phenyl)-6-methyl- pyridin-2-ylamine with 4-fluoro-benzenesulfonyl chloride there was obtained: N-[5-(5- Chloro-2-methyl-phenyl)-6-methyl-pyridin-2-yl] -4-fluoro-benzenesulfonamide as a white solid. ISN mass spectrum, m/e: 389 (M-I calculated for Ci 9 H 16 ClFN 2 O 2 S: 389).
• Example 133 a In analogy to example 1, on reaction of 5-(5-Chloro-2-methyl- ⁇ henyl)-6-methyl- pyridin-2-ylamine with 3-chloro-2-methyl-benzenesulfonyl chloride there was obtained: 3-Chloro-N-[5-(5-chloro-2-methyl-phenyl)-6-methyl-pyridin-2-yl]-2-methyl- benzenesulfonamide as a white solid. ISN mass spectrum, m/e: 419 (M-I calculated for C 20 H 18 Cl2N 2 O 2 S: 419).
• Example 134 a In analogy to example 1, on reaction of 5-(6-Chloro-2-fluoro-3-methyl-phenyl)-6- methyl-pyridin-2-ylamine with 3-trifiuoromethyl-benzenesulfonyl chloride there was obtained: N-[5-(6-Chloro-2-fiuoro-3-methyl-phenyl)-6-methyl-pyridin-2-yl]-3- trifluoromethyl-benzenesulfonamide as a light-yellow solid.
• Example 142 a In analogy to example 1, on reaction of 5-(5-Fluoro-2-methyl-phenyl)-6-methyl- pyridin-2-ylamine with 4-fluoro-benzenesulfonyl chloride there was obtained: 4-Fluoro- N-[5-(5-fluoro-2-methyl-phen7l)-6-methyl-pyridin-2-yl]-benzenesulfonamide as an off- white solid.
• Example 143 a In analogy to example 1, on reaction of 5-(5-Fluoro-2-methyl-phenyl)-6-methyl- pyridin-2-ylamine with 3-chloro-benzenesulfonyl chloride there was obtained: 3-Chloro- N- [5-(5-fluoro-2-methyl-phenyl)-6-methyl-pyridin-2-yl] -benzenesulfonamide as an off- white solid. ISN mass spectrum, m/e: 389 (M-I calculated for C 19 H 16 ClFN 2 O 2 S: 389).
• Example 144 a In analogy to example 1, on reaction of 5-(2,5-Dichloro-phenyl)-6-methyl-pyridin-2- ylamine with 3-trifluoromethyl-benzenesulfonyl chloride there was obtained: N- [5-(2,5- Dichloro-phenyl)-6-methyl-pyridin-2-yl] -3-trifluoromethyl-benzenesulfonamide as an orange oil.
• ISN mass spectrum, m/e: 459 (M-I calculated for C 19 H 13 Cl 2 F 3 N 2 O 2 S: 459).
• Example 152 In analogy to example 1, on reaction of 5-(2 > 3-Dichloro-phenyl)-6-methyl-pyridin-2- ylamine with 3-methyl-benzenesulfonyl chloride there was obtained: N-[5-(2,3-Dichloro- phenyl)-6-methyl-pyridin-2-yl]-3-methyl-benzenesulfonamide as a white foam.
• Example 153 a In analogy to example 1, on reaction of 5-(2,5-Dichloro-phenyl)-6-methyl-pyridin-2- ylamine with 2,4-dichloro-6-methyl-benzenesulfonyl chloride there was obtained: 2,4- Dichloro-N-[5-(2 ) 5-dichloro-phenyl)-6-methyl-pyridin-2-yl]-6-methyl- benzenesulfonamide as a light-yellow foam.
• ISN mass spectrum, m/e: 475 (M-I calculated for Ci 9 H 14 Cl 4 F 3 N 2 O 2 S: 475).
• Example 155 In analogy to example 1, on reaction of 5-(2-Chloro-4-fluoro-phenyl)-6-methyl-pyridin- 2-ylamine with 2,4-dichloro-5-methyl-benzenesulfonyl chloride there was obtained: 2,4- Dichloro-N- [5- (2-chloro-4-fluoro-phenyl) -6-methyl-pyridin-2-yl] -6-methyl- benzenesulfonamide as a white foam.
• Example 158 In analogy to example 1, on reaction of 5-(2,4-bis-trifluoromethyl-phenyl)-pyridin-2- ylamine with 4-fluoro-benzenesulfonyl chloride there was obtained: N-[5-(2,4-Bis- trifluoromethyl-phenyl)-pyridin-2-yl]-4-fluoro-benzenesulfonamide as a white foam.
• Example 167 a In analogy to example 1, on reaction of 5-(2-Chloro-phenyl)-3,4-dimethyl-pyridin-2- ylamine with 3-trifluoro-benzenesulfonyl chloride there was obtained: N- [5-(2-Chloro- phenyl)-3,4-dimethyl-pyridin-2-yl] -3-t ⁇ ifluoromethyl-benzenesulfonamide as a yellow amorphous solid.
• Example 168 a In analogy to example 1, on reaction of 5-(2-Chloro-phenyl)-3,4-dimethyl-pyridin-2- ylamine with 3-chloro-benzenesulfonyl chloride there was obtained: 3-Chloro-N-[5-(2- chloro-phenyl)-3,4-dimethyl-pyridin-2-yl]-benzenesulfonamide as a yellow amorphous solid. ISN mass spectrum, m/e: 405.1 (M- 1 calculated for C 19 H 16 Cl 2 N 2 O 2 S: 405) .
• Example 169 In analogy to example 1, on reaction of 5-(2-Chloro-phenyl)-3,4-dimethyl-pyridin-2- ylamine with 3-chloro-benzenesulfonyl chloride there was obtained: 3-Chloro-N-[5-(2- chloro-phenyl)-3,4-dimethyl-pyridin-2-yl]-benzenes
• Example 172 a In analogy to example 1, on reaction of 5-(2-Chloro-phenyl)-4-methyl-pyridin-2- ylamine with 3-trifluoromethyl-benzenesulfonyl chloride there was obtained: N-[5-(2- Chloro-phenyl)-4-methyl-pyridin-2-yl]-3-trifluoromethyl-benzenesulfonamide as an off- white solid.
• Example 174 In analogy to example 1, on reaction of 2-Methyl- [3,3']bipyridinyl-6-ylamine with 3- chloro-benzenesulfonyl chloride there was obtained: 3-Chloro-N-(2-methyl- [3,3']bipyridinyl-6-yl)-benzenesulfonamide as a light-brown amorphous solid. ISN mass spectrum, m/e: 358 (M-I calculated for C 17 H 14 ClN 3 O 2 S: 358).
• Example 176 a In analogy to example 1, on reaction of 5-(4-Fluoro-2-methyl-phenyl)-4-methyl- pyridin-2-ylamine with 3-trifluoromethyl-benzenesulfonyl chloride there was obtained: N- [5-(4-Fluoro-2-methyl-phenyl)-4-methyl-pyridin-2-yl]-3-trifluoromethyl- benzenesulfonamide as a white solid. ISN mass spectrum, m/e: 423 (M-I calculated for C 20 H 16 F 4 N 2 O 2 S: 423).
• a compound of formula I can be used in a manner known per se as the active ingredient for the production of tablets of the following composition:
• a compound of formula I can be used in a manner known per se as the active ingredient for the production of capsules of the following composition:

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